IS this a fossil? if so what?

[jomknight]

Found 21st Aug 2017 on Kimmeridge beach Dorset UK so late jurassic era. The centre line is slightly raised, the edges  clean cut.

[Fossildude19]

Hello, and welcome to the Forum.

The rock isn't a fossil in and of itself, but I do see what looks like a small shell fossil near the bottom edge in the second picture.  

 

 

 

Maybe someone more local will weigh in. 

 

@TqB  @Kosmoceras @JohnBrewer

[Miocene_Mason]

Looks like some shale with a bedding line, could be split if you so desire.

[TqB]

I agree it seems to be a piece of shale, weathered out along joint lines to give the triangular shape.

[Bguild]

Yep, this is geological.

 

-Barret